Evidence map›Paper›PMID 21914807›Full record

ArticleThe Journal of biological chemistry2011

Polar transmembrane-based amino acids in presenilin 1 are involved in endoplasmic reticulum localization, Pen2 protein binding, and γ-secretase complex stabilization.

Matthias Fassler, Xiaolin Li, Christoph Kaether

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.8field-weighted citation impact, top 29% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 14 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Matthias FasslerLeibniz Institut für Altersforschung-Fritz Lipmann Institut, 07743 Jena, Germany.
Xiaolin LiLeibniz Institut für Altersforschung-Fritz Lipmann Institut, 07743 Jena, Germany.
Christoph KaetherLeibniz Institut für Altersforschung-Fritz Lipmann Institut, 07743 Jena, Germany. Electronic address: ckaether@fli-leibniz.de.
Leibniz Institute on Aging - Fritz Lipmann Institute (FLI) · DELeibniz Institute for Neurobiology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

γ-Secretase is composed of the four membrane proteins presenilin, nicastrin, Pen2, and Aph1. These four proteins assemble in a coordinated and regulated manner into a high molecular weight complex. The subunits constitute a total of 19 transmembrane domains (TMD), with many carrying important amino acids involved in catalytic activity, interaction with other subunits, or in ER retention/retrieval of unassembled subunits. We here focus on TMD4 of presenilin 1 (PS1) and show that a number of polar amino acids are critical for γ-secretase assembly and function. An asparagine, a threonine, and an aspartate form a polar interface important for endoplasmic reticulum retention/retrieval. A single asparagine in TMD4 of PS1 is involved in a protein-protein interaction by binding to another asparagine in Pen2. Intriguingly, a charged aspartate in TMD4 is critical for γ-secretase activity, most likely by stabilizing the newly formed complex.

Indexed as

Alzheimer DiseaseAmino AcidsAnimalsAsparagineBinding SitesGlycosylationHEK293 CellsHumansMiceMice, KnockoutMutationPresenilin-1Presenilin-2Protein BindingProtein ConformationAmino AcidsAsparaginePresenilin-1Presenilin-2

Identifiers

PMID21914807
PMCPMC3207410
OpenAlexW2094385558

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.